johentsch

from ms3 import fifths2rn, name2fifths, rel2abs_key

def absolute_chord2rn(abs_chord, abs_key):
    """Given an absolute chord (such as 'Ab') and an absolute key (such as 'C') return the chord's scale degree ('bVI')."""
    is_minor_chord, is_minor_key = abs_chord.islower(), abs_key.islower()
    chord_fifths, key_fifths = name2fifths(abs_chord), name2fifths(abs_key)
    interval = chord_fifths - key_fifths
    result = fifths2rn(interval, is_minor_key)
    if is_minor_chord:
        result = result.lower()

johentsch

import re
import pandas as pd
import numpy as np
from urllib.request import urlopen

REGEX = {}

def features2type(numeral, form=None, figbass=None):
    """ Turns a combination of the three chord features into a chord type.